56.19 USART Electrical Specifications

Table 56-24. UART Electrical Specifications
AC CHARACTERISTICS Standard Operating Conditions: VDD = AVDD = 1.71V to 3.63V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +125°C for Extended Temperature
Param. No. Symbol Characteristics Min. Typ. Max. Units Conditions
UT_1 FBRATE Baud Rate Asynchronous SAMPR = 16x mode — — FCLK_23/16 Mbps VDD=1.8V or VDD=3.3V

FCLK_23: Refer to

Maximum Clock Frequencies Electrical Specifications
UT_3 Asynchronous SAMPR = 8x mode — — FCLK_23/8 Mbps VDD=1.8V or VDD=3.3V

FCLK_23: Refer to

Maximum Clock Frequencies Electrical Specifications
UT_5 Asynchronous SAMPR = 3x mode — — FCLK_23/3 Mbps VDD=1.8V or VDD=3.3V

FCLK_23: Refer to

Maximum Clock Frequencies Electrical Specifications
UT_23 FUSART USART max GCLK_SERCOM — — FCLK_23 MHz FCLK_23: Refer to

Maximum Clock Frequencies Electrical Specifications
Note:
  1. These parameters are characterized, but not tested in manufacturing.